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Thoughts on the RSA SecurID 800 paper

The original paper on the attack is Efficient Padding Oracle Attacks on Cryptographic Hardware' by Bardou, Focardi, Kawamoto, Simionato, Steel and Tsay> here (pdf). They have combined and optimized a handful of attacks against the PKCS#11 encryption that they claim make it possible to extract the private keys. There is a great summary by Matthew Green from John Hopkins.

I know something that isn't two-factor authentication

William Edwards wrote a post entitled "I know someone whose 2-factor phone authentication was hacked…" about a friend whose bank account was drained by fraudsters. His bank relied on a dial-back system. The attackers social-engineered BT to re-route the phone calls. This attack is eerily similar to the recent attack on Cloudflare, which started with an attack on an AT&T account.

Article in [IN]Secure magazine: Adding two-factor to Google apps

You can download the latest [In]Secure Magazine Issue 34 in pdf format here:  net-security.org/insecuremag.php

More on the Security of Software Tokens

A long time ago, I had a blog post discussion with Securology about the security of software tokens. Since then there has been a massive shift away from hardware-based tokens. A recent post on sensepost about cloning RSA software tokens will rekindle this discussion. Indeed, this morning I discussed it on twitter with boB Rudis and Rafal Los

Accidental Rugged Devops

This week at Secureworld Expo Atlanta, I had the pleasure of hearing Gene Kim talk about Rugged DevOps. When I first ran into Gene, he was with someone I worked with previously at another start-up.  That sent me down memory lane.

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